Dead sheep with dodgy liver SDL

Question 1

Pathophysiology of liver fluke

Answer 1

Fluke ingested as metacercaria, migrates to intestine, peritoneum, liver, settles in bile ducts matures and begins to lay eggs

Question 2

PPP of liver fluke

Answer 2

10-12 weeks

Question 3

chronic clinical signs associated with liver fluke

Answer 3

poor BCS
poor fleece quality
bottle jaw
death

Question 4

How to count fluke eggs

Answer 4

faecal flotation

Question 5

what blood result is useful to diagnose liver fluke

Answer 5

hypoproteinaemia

Question 6

what can you see on PM on sheep liver with chronic fluke

Answer 6

mature liver fluke and chronic thickened bile ducts

Question 7

How can vaccinating against clostridial diseases reduce mortality with liver fluke?

Answer 7

Liver parasites make it easier for these disease to cause disease and death

Question 8

Prevention of liver fluke

Answer 8

vaccinate against clostridial disease
prevent grazing on wet/swampy land
provide drinking troughs
manage pasture and drench stategically

Question 9

Which anthelmintic should be avoided unless acute infection with liver fluke killing sheep?

Answer 9

Triclabendazole

Question 10

When is the best time to dose sheep with anthelmintics so only need to use ones that kill adults (not young flukes)?

Answer 10

when housed